Grain-spout for thrashing-machines



(No Model.)

W. LINCOLN.

GRAIN SPOUT FOR THRASHING MACHINES.

No. 339.560. Patented Apr. 6, 1886..

Wilzeww. N [me/don QZ/fl/ML' 112M NITED STATES PATENT rrrcnq.

XVARD LINCOLN, OF LITTLE ROCK, ILLINOIS.

:EJPECEPICATION forming part0! Letters Patent No. 339,560. dated April6, 1886.

Application filed January 4, 1886. Serial No. 187,523. (No model.)

To all whom it may cogwern:

Be it known that I, lVARn LINCOLN, a citizen of the United States,residing at Little Rock, in the county of Kendall and State of Illinois,have invented certain new and useful Improvements in Grain-Spouts forThrashing- Machines; and I do declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appcrtains to make and use the same,reference being had to the accompanying drawings, and to the letters andfigures of reference marked thereon, which form a part of thisspecification.

The invention will first be described in connection with the drawings,and then pointed out in the claim.

Figure 1 of the drawings is an elevation, partly broken away so as toshow the sieve. Fig. 2 is a vertical crosssection on linen: or ofFig. 1. Fig. 3 is a detail View of the shoe in perspective.

In the drawings, A represents the shoe; B, a hinged frame connectedtherewith by the pivoted rods 0 e; C, a brace hinged atf t0 the forwardend of the top of frame B, while its upper end is ac'ljustably connectedby slot and adjusting-screw with the castings T T, the latter made fastto the thrasher-frame D.

The shoe A has paralled sides,between which is the sieve L, made ofmetal, perforated to suit the size of seed which is to be cleaned; or itmay be formed of wire-gauze. This screen projects over the back 1,between the under side of the inclined tilt-board m and the bottomboard, 01-, of the grain-spout Z of the winnowing-shoe of the thrasher.This brings the screen L as nearly as possible on a line with thetilt-board, so as to prevent the grain from passing through, and causeit to screen, out small bits of straw and other particles.

The operation is as follows: The grain passes from the thrashertilt-board or upon and through the sieve or screen L, leaving on thelatter bits of straw and large grain which,are carried by the shakingmotion down the incline of the shoe into the discharge-spout 3 Thisspout is so arranged as to clear the shoe as the latter vibrates.

It will be observed that the side of the shoe is cut off at P, andanother plate, 1), inserted at an angle to the parallel sides, the loweredge being extended so as to discharge the grain which falls through thesieve upon said plate as far as possible from the screenings and confinethe discharge of grain to a narrower stream.

It will be observed that the shoe is hinged to frame D nearly or quiteon the line ofjunction of the sieve or screen L and the tilting board m.The hook I and eye K allow a vertical movement of the shoe A, so thatthe latters inclination and that of the screen may he graduated to agreater or less volume of grain or screenings.

The shoe A has the same vibration as the thrasher-spout Z, and this isprovided for by the swinging rods e e, which also support a great partof its weight.

Having thus described all that is necessary to a full understanding ofmy invention, what I claim as new,and desire to protect by LettersPatent, is- A grain-spout for thrashing-machines, comprising thesieve-shoe A, hinged frame 13, and hinged adj ustable brace O, incombination with the spout of the winnower and the thrasherframe D,substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

WARD LINCOLN.

Vitnesses:

ELI SMITH, S. G. LINCOLN.

